Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Mar. 31, 2022	Sep. 30, 2021	Sep. 30, 2020	Mar. 31, 2022	Mar. 31, 2021	Mar. 21, 2021
Cash flows from operating activities:
Net loss	$ (2,100)	$ (2,029)	$ (2,111)	$ (6,309)	$ (6,136)	$ (6,136)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation, net of forfeitures				1,166		284
Depreciation and amortization				169		197
Loss on disposal of assets				0		173
Changes in assets and liabilities:
Accounts receivable				(135)		(11)
Inventory, net				2		(472)
Income tax receivable				0		429
Accounts payable				(289)		131
Other assets and liabilities				232		550
Net cash used in operating activities				(5,164)		(4,855)
Cash flows from investing activities:
Purchases of property and equipment				(370)		(24)
Net cash used in investing activities				(370)		(24)
Cash flows from financing activities:
Repayment of related party debt				(2,000)		0
Payments on lease financing	(38)			(56)	(9)	(9)
Proceeds from issuance of stock, net of offering issuance costs				0		33,555
Net cash (used in) provided by financing activities				(2,056)		33,546
Net change in cash and cash equivalents				(7,590)		28,667
Cash and cash equivalents at beginning of period		$ 35,936	$ 3,349	35,936	$ 3,349	3,349
Cash and cash equivalents at end of period	28,346			28,346		32,016
Reconciliation of cash and cash equivalents and restricted cash at end of period:
Cash and cash equivalents	28,346			28,346		31,474
Restricted cash	0			0		542
Total	$ 28,346			28,346		32,016
Supplemental disclosures of cash flow information:
Cash paid for interest				8		2
Income taxes paid				0		0
Acquisition of equipment through financing lease				$ 394		$ 0